Place shaft repair sleeves over a damaged running surface of rubber oil seals, thus creating a new running surface without significantly increasing the shaft diameter. This allows you to carry on using your current oil seals. Eri-sleeve shaft repair sleeves are made of hard chrome-plated stainless steel. The Eri-sleeve has the correct hardness and an excellent surface for seals, extending the period between repairs. In most cases they can be applied without disassembling the shaft, which obviously means a huge time and cost saving. No special tools are required either.